I am wondering whether there is a library available for renewable energy components such solar PV, Battery storage systems, wind turbines, mini hydro and hybrid combinations. Or whether anyone is working on developing a product for the system modeller?
The Modelica Association keeps a list of some free Modelica libraries on their website, I recommend checking it out here. From their list, maybe the libraries Modelica_EnergyStorages (Battery storage) and WindPowerPlants could be of interest to you? I haven’t tried any of these personally, so I don’t know how well they work though!